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Showing 1–5 of 5 results
Advanced filters: Author: M. Ellguth Clear advanced filters

  • The consequences of electron-electron interactions are difficult to calculate reliably but this is needed to understand important physical properties such as ferromagnetism. Tusche et al. show that interaction effects in cobalt are nonlocal, presenting a challenge to future theoretical approaches.

    • Christian Tusche
    • Martin Ellguth
    • Jürgen Kirschner
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • Time-of-flight momentum microscopy is developed. It enables direct three-dimensional mapping of the topology of the Fermi surface, identification of electron and hole pockets, and quantification of Fermi velocity as a function of wavevector.

    • K. Medjanik
    • O. Fedchenko
    • G. Schönhense
    Research
    Nature Materials
    Volume: 16, P: 615-621

  • Angle resolved photoelectron spectroscopy can reveal the band and spin structures of a system but the contribution of different types of photoelectron diffraction is challenging to interpret. Here, the authors develop an analysis method to reveal the contribution of Laue- and Kikuchi-type diffraction to the valence band spectra when using photoemission techniques.

    • G. Schönhense
    • K. Medjanik
    • H.-J. Elmers
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-13